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Key Product Details

Species Reactivity

Human

Applications

Immunohistochemistry, Immunohistochemistry-Paraffin, Western Blot

Label

Janelia Fluor 646

Antibody Source

Monoclonal Mouse IgG1 Kappa/IgG1 Kappa Clone # HMB45 + PMEL/783

Concentration

Please see the vial label for concentration. If unlisted please contact technical services.

Product Specifications

Immunogen

Extract of pigmented melanoma metastases from lymph nodes (HMB45); Recombinant human SILV protein (PMEL/783) (Uniprot: P40967)

Localization

Cytoplasmic

Specificity

The gp100 molecule is a 100kDa glycosylated protein that is cleaved into a small (26kDa) carboxy-terminal fragment and a larger amino- terminal section (60-64 kDa), which is subsequently cleaved to generate 26kDa and 34-38kDa. By immunohistochemistry, it specifically recognizes a protein in melanocytes and melanomas. This monoclonal antibody reacts with junctional and blue nevus cells and variably with fetal and neonatal melanocytes. Intradermal nevi, normal adult melanocytes, and non-melanocytic cells are negative. It does not stain tumor cells of epithelial, lymphoid, glial, or mesenchymal origin. Metastatic amelanotic melanoma can often be confused with a variety of poorly differentiated carcinomas, large cell lymphomas, and sarcomas using H E stains alone. It is also difficult to differentiate melanoma from spindle cell carcinomas and various types of mesenchymal neoplasms. This monoclonal antibody stains fetal and neonatal melanocytes, junctional and blue nevus cells, and malignant melanoma. This monoclonal antibody also stains Angiomyolipoma (PEComa).

Marker

Melanoma Marker

Clonality

Monoclonal

Host

Mouse

Isotype

IgG1 Kappa/IgG1 Kappa

Applications for PMEL17/SILV Antibody (HMB45 + PMEL/783) [Janelia Fluor® 646]

Application
Recommended Usage

Immunohistochemistry

Optimal dilutions of this antibody should be experimentally determined.

Immunohistochemistry-Paraffin

Optimal dilutions of this antibody should be experimentally determined.

Western Blot

Optimal dilutions of this antibody should be experimentally determined.
Application Notes
Optimal dilution of this antibody should be experimentally determined.

Formulation, Preparation, and Storage

Purification

Protein A or G purified

Formulation

50mM Sodium Borate

Preservative

0.05% Sodium Azide

Concentration

Please see the vial label for concentration. If unlisted please contact technical services.

Shipping

The product is shipped with polar packs. Upon receipt, store it immediately at the temperature recommended below.

Stability & Storage

Store at 4C in the dark.

Background: PMEL

Melanoma gp100 a melanosomal matrix protein whose expression is closely correlated with cellular melanin content and which is a frequent melanoma tumor antigen recognized by cytotoxic T lymphocytes. It is a likely candidate gene for some cases of human oculocutaneous albinism not associated with known albinism loci.

Long Name

Premelanosome Protein

Alternate Names

Gp100, ME20, ME20-M, ME20M, PMEL17, SILV

Gene Symbol

PMEL

Additional PMEL Products

Product Documents for PMEL17/SILV Antibody (HMB45 + PMEL/783) [Janelia Fluor® 646]

Certificate of Analysis

To download a Certificate of Analysis, please enter a lot number in the search box below.

Product Specific Notices for PMEL17/SILV Antibody (HMB45 + PMEL/783) [Janelia Fluor® 646]

Sold under license from the Howard Hughes Medical Institute, Janelia Research Campus

This product is for research use only and is not approved for use in humans or in clinical diagnosis. Primary Antibodies are guaranteed for 1 year from date of receipt.

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